Speed run of Half-Life's Hazard course in a Single segment, done on September 11 2004. Available as Divx 640x480 or 320x240 and original recording as .dem file, which requires version 1.1.2.0 of Half-Life to play.
Author's comments: Thanks to tronbot, -think.circle- and Spider-Waffle for some shortcuts and techniques. I lost about 5 seconds on this one due to the Barney guard not running up to the button and some screwups near the target range.